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PatchSiren cyber security CVE debrief

CVE-2026-33380 Grafana CVE debrief

CVE-2026-33380 is a medium-severity vulnerability in Grafana's SQL Expressions feature. An authenticated attacker can exploit this vulnerability to read arbitrary files from the Grafana server's filesystem. This vulnerability is only exploitable if the sqlExpressions feature toggle is enabled.

Vendor
Grafana
Product
Grafana OSS
CVSS
MEDIUM 6.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-13
Original CVE updated
2026-06-17
Advisory published
2026-05-13
Advisory updated
2026-06-17

Who should care

Grafana users with the sqlExpressions feature toggle enabled should be aware of this vulnerability and take steps to mitigate it.

Technical summary

CVE-2026-33380 has a CVSS score of 6.3 and is classified as MEDIUM severity. The vulnerability is caused by a weakness in Grafana's SQL Expressions feature, which allows an authenticated attacker to read arbitrary files from the server's filesystem. The vulnerability is tracked under CWE-552.

Defensive priority

medium

Recommended defensive actions

  • Update to a patched version of Grafana: 11.6.14, 12.2.8, 12.3.6, 12.4.3, or 13.0.1
  • Disable the sqlExpressions feature toggle if not in use

Evidence notes

Evidence from NVD and Grafana's security advisory confirm the existence and details of this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-33380 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-33380

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-33380 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-33380

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.